GB893272A - Process for racemization of optically active glutamic acid - Google Patents

Process for racemization of optically active glutamic acid

Info

Publication number
GB893272A
GB893272A GB7613/60A GB761360A GB893272A GB 893272 A GB893272 A GB 893272A GB 7613/60 A GB7613/60 A GB 7613/60A GB 761360 A GB761360 A GB 761360A GB 893272 A GB893272 A GB 893272A
Authority
GB
United Kingdom
Prior art keywords
optically active
glutamic acid
racemization
active glutamic
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB7613/60A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ajinomoto Co Inc
Original Assignee
Ajinomoto Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ajinomoto Co Inc filed Critical Ajinomoto Co Inc
Publication of GB893272A publication Critical patent/GB893272A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D207/24—Oxygen or sulfur atoms
    • C07D207/26—2-Pyrrolidones
    • C07D207/273—2-Pyrrolidones with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to other ring carbon atoms
    • C07D207/277—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D207/28—2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Optically active glutamic acid is racemised by heating an aqueous solution containing 15% to 35% by weight of optically active glutamic acid and 30% to 50% by weight of sulphuric acid to temperatures between 170 DEG C. and 200 DEG C. for from 3 to 15 hours.
GB7613/60A 1959-03-20 1960-03-03 Process for racemization of optically active glutamic acid Expired GB893272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP893272X 1959-03-20

Publications (1)

Publication Number Publication Date
GB893272A true GB893272A (en) 1962-04-04

Family

ID=13967559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7613/60A Expired GB893272A (en) 1959-03-20 1960-03-03 Process for racemization of optically active glutamic acid

Country Status (1)

Country Link
GB (1) GB893272A (en)

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